supergene

This term is a highly specialized technical descriptor used almost exclusively in geology and mineralogy. It describes a specific geochemical process where surface-level weathering and the downward movement of water concentrate minerals, often creating high-grade ore deposits. It is distinct from hypogene processes, which occur deep underground via hydrothermal fluids.

As a noun, the term refers to the resulting material or the specific geological zone created by these processes. In professional discourse, it is most frequently encountered as an adjective modifying terms like enrichment, alteration, or zone to specify the origin of the mineral formation.